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(No Model.) 2SheetsSheet 1. G. S. KELSEY.

STATION INDIGATOR. No. 435.427. Patented Sept. 2, 1890.

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(No Model.)

2 Sheets-Sheet 2.

0. s. KELSEYQ STATION INDIGATOR.

Patented Sept. 2, 1890.

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' UNITED STATES PATENT cam.

. CLIFFORD S. KELSEY, OF NEW YORK, N. Y.

STATION-INDICATOR.

SPECIFICATION forming part of Letters Patent No. 435,427, dated September 2, 1890.

' Application filed April 11, 1890. I Serial RIO-347,560. (No model.)

.To all whom it may concern.-

Be it known that I, CLIFFORD S. KELSEY, a citizen ofv the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Station-Indicators; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. 1

My invention has reference to'station-indicators, but particularly refers to that class of such devices which are automatically actuated by connection with the car-wheel axle. The object of my invention is not only to provide at a comparatively small cost an indicator which shall be simple and effective, but also to provide against any accidental disarrangement of the traveling curtain, due to the reaction of the spring, which latter is used, as will be hereinafter set forth, to compensate for the varying diameters of the drums which carry the curtain.

My invention consists in the details of construction and combination of instrumentalitie such as will be fully hereinafter set forth, and then specifically designated by the claims.

In the accompanying drawings, Figure 1 is a transverse section of a car, showing the mannor of transmitting motion to my improvement by various gears, and also showing a front elevation of my indicator as it appears to the observer in the car; Fig. 2, a central vertical section taken through the casing of the indicator; Fig. 3, a broken sectional interior view of the casing at the line y y of Fig. 2, showing the relative arrangement of the index-hand and rack; Fig. 4, a vertical section through the line a; as, of Fig. 1; Fig. 5 I

a sectional elevation of a box or casing which normally envelops the primary gearing on the axle, and Fig. 6 a detail bottom view of such box or casing in position.

Similar letters denote like parts in the several'figures of the drawings.

A is the casing, which is secured to the in terior of the car B in any suitable manner. Within this casing are journaled three shafts C D E, one above the other.

F G H are intermeshing gears, which are rigid on said shaftsO D E, respectively. The

gears F H are the same size, so that equal speeds will be imparted to their shafts from the gear G, as will be presently set forth. The shaft D is extended and has mounted on its extremity the bevel-gear I. 1

'J is a vertical shaft journaled in hangers K at the side of the car and having beveled gears at each end, the gear L- at the upper end meshing with the gear I, while the gear M at the lower end meshes with the bevelgear N on the horizontal shaft 0, which latter is journaled within the bottom of the car.

P is a short shaft journaled in a box Q below the shaft 0, and having aworm R, which meshes with the worm-gear S onthe shaft 0. T is a worm on the axle U, and V is a cas-' ing surrounding said axle.

WV is a short shaft journaled in said casing,

- and X is a worm-wheel mounted on said shaft and meshing with the worm T.

Y is a coil-spring which connects the shafts P W, so that it will be readily understood that motion will be transmitted from the shaft V to the shaft P through the medium of the coil-spring Y. The function of this spring is to insure the safety of the axle-gearing and to prevent any disarrangement of parts whenever the car sways or bounces on its trucks, or Whenever the car turns a sharp curve. This system of gearing and communication of motion to the gear G is not a material feature of my invention, and I have shown and described it merely as an adj unctive feature in order that my invention proper may be fully comprehended.

On the shaft 0 is rigidly mounted a drum 7 a, while a drum 1) is loosely mounted on the shaft E and connected therewith by means of a volute spring 0, one end of which is secured to said shaft E, the other end being secured to the drum, as clearly shown in Fig. 2. Thus it will be seen that motion from the shaft E will be transmitted to the drum 1) through the instrumentality of the spring 0. The curtain d is fastened to the drums so as to be unrolled from one to the other in the usual manner. Of course when the curtain is initially unwound from one drum on the other the diameters of the two drums are constantly changing, and as the speed of the two shafts C E is the same it follows that if the drums at b were both tight on said shafts more curtain would be paid out from one roll than the Other roll could wind up, while, on the other hand, any attempt to wind the curtain from a drum of less diameter upon a drum of greater diameter would cause the curtain to be torn, for the reason that the movement of the latter drum would tend to wind more thantheother drum could pay out. Therefore it Will be readily seen that these diificulties are compensated for by the sp g, and the employment of the latter in this connection is not new, but is merely an ordinary old expedient heretofore resorted to in similar instances. It is highly important, however, that the connection between the drums should be suchthat the reaction of" the volute spring should be met by an unresisting obstacle, and therefore it would never do to communicate motion from one drum to the other by means of a belt, for the reaction of the spring would cause the'shaft to which the latter is connected to turn backward, so as to cause the belt-to slip, and the purposes of the indicator would be subverted.

e is arack, which is guided within the back of the caslng by means of pins f, which extend from said rack within an elongated slot g in said casing, said rack being capable of a free vertical movement. h are spring-cushions at the top and bottom of said casing and withln the field of movement of said rack.

t is a cog-wheelon the shaft D, meshing with the rack e. When the cog '5 revolves in one direction, it will throw the rack against one of the springs, and on the reverse movementof said cog the rack will be forced by the resiliency .of the-spring into engagement with the cog, and be thereby thrown against the other spring.

- y is a hand, the index whereof is pivoted at 7a through the glass front I of the casing.

an 1s a bracket extended from the rack, and n is a link connected loosely to this bracket and to the rear part of the index-hand, whereby the vertical movements of said rack will cause the hand to swing on its pivot. It will therefore be clearly understood thatthe aforesaid movements of the rack will cause the index to point up or down,as the case may be.

The names of the stations appear on the curtain, and their location with respect to the index may be ascertained byoue or more trips on the car, it being essential only to mark the name of the station on the curtain opposite'the index whenever the car stops at such station.

The fact that the drumrshafts are equally speeded from the same source and that the said drums are looked as against backlash or as against any movement reverse to the direction of that in which they move when performing their functions renders the operation of my invention uniform and capable of effecting like results at different times and under the same conditions.

The direction in which the index points appear from above.

signifiesthat the following stations will appear from above or below, as the case may be. For instance, in Fig. 1 the next station will be Park Place, the next succeeding Chambers street, and so on, and as the index points upward the following stations will When the car has commenced to travel in the opposite direction,

however, the rack will be thrown up by the cog i, and theindex will therefore point down.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a station-indicator, the combination of the axle U, carrying the worm T, the cas ing surrounding said axle, the shaft W, jour-. naled within said casing andcarrying the worm-wheel X, which meshes with said worm,

. the vertical shaft P, journaled within the bottom of the car andcarrying the worm R, the

coil-spring connecting said shafts, the horizontal shaft 0 and verticalshaft J, journaled: within the frame of* the car and carrying intermeshin g bevel-gears, the worm-wheel Son the shaft Oxand meshing with the worm R, a 1

the shaft 0 and drum rigid thereon, the shaft E and drum loose thereon, the shaft D, having mounted thereon'the gear G, the gears h H, of equal size, mounted on the shaftsO E and:

meshing with-the gear G, and the in-termeshing bevel-gears secured onthe' shafts D substantially as set forth.

2. The combination of the axle U, carrying the worm T, the casing surrounding said axle, the shaft W, journaled within said casing andcarrying the worm-wheel X, which meshes with said worm, thelbox Qat the bottom'of the car, the shaft P, journaled within said box, and the coil-spring .connecting said shafts, substantially as and for the set forth.

3. The combination, with the hand, the index whereof is pivoted within :the-casing front, of the vertically-reciprocating rack purposes IIO guided within the back of the casing,thc

bracket extending-from said rack, and the link loosely connected to said hand-and bracket, substantially as set forth.

4. The combination ofthe casing having elongated slot g, the rack having guide-pins extended within said slot, the coil-springsat the ends of said slot, the index-hand pivoted to the front of said casing, the bracket cxtended from said rack, the link looselyconnected to i said hand and bracket, and a cogwheel mounted onthe power-transmittin g shaftand adapted to en gage said rack, whereby'the latter is thrown up or down tochange the direction in which theindex-hand points,

substantially asshown, and for the purposes hereinbefore set forth.

In testimony whereof Iaifixmy signaturein presence of two witnesses.

CLIFFORD S. KELSEY. A

Witnesses: O. H. KELSEY, JOHN S. 'KENNEDY. 

